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Today the Environmental Protection Agency âissued a proposed finding that greenhouse gases contribute to air pollution that may endanger public health or welfare.â

Six of the gases that contribute to climate change were included in the EPAâs proposed endangerment finding: carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perflurocarbons and sulfur hexafluoride.

The EPA said âthe science clearly shows that concentrations of these gases are at unprecedented levels as a result of human emissions, and these high levels are very likely the cause of the increase in average temperatures and other changes in our climate."

This afternoon, WMNF spoke with Stephen Smith, executive director of the Southern Alliance for Clean Energy.